Internal-combustion engine.



H. C. CLEAVER.

INTERNAL COMBUSTION ENGINE` APPLICATION mw Nov. 29. m2.

1,144,027. pmmgiun@ 22, m15.

H. C. CLEAVER.

INTERNAL COMBUSTION ENGlNE.

APPLICATION FILED Nov. 29. 1912.

1 ,144,027. Patented June 22, 1915.

4 SHEETS-SHEET 21 H. S. CLEAVER.

INERNAL COMBUsTzQN ENGINE.

APPLiCATION HLFU NGV. 29, 3912.

Patented June 22, 1915.

4 SHEETS-SHEET 3.

H. C. CLEAVER.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED NOI/.29. I9I2.

Patented Jim@ 22, 1915.

4 SHEETS-SHEET 4.

HOWARD CRUNDEN CLEAVER, F LONDON, ENGLAND.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented June 22, 1915i.

Application filed November 29, 1912. Serial No. 734,183,

To all whom it may concern Be it known that I, HOWARD CRUNDEN CLEAVER, a subject of the King of Great Britain`v residing at 35 Berners street, Lon don, England, have invent/ed new and useful improvements in InternalCombust-ion Engines, of which the following is a specifi cation.

This invention relates to developments and improvements in engines wherein. distriliution is governed by cylinder rotating within n fixed cylinder or between two fixed cylinders concentric therewith.

The engine of my invention is primarily intended for use as an internal combustion engine Working on the Otto cycle principle but may he operated by other propulsive means such as by steam.

According t0 the present invention provide n second port in the valve cylinder or sleeif'e and cause the Sleeve to rotate at n, i engine speed, thus causing the two rotiiif' ports to register niternntcly with the timid Cylinder ports the Smid tired port? being: constructed and arranged Qiiflicicntly near to each other to compe; u 'tor the slow rotation of said vulve fj, infini' rm'l 'l nro- Vide n second izmir :1? mrts in. the liied c riintlorr-: onnoeiie to the first pair. thus providing rlnplicsned ir l igen for gn e. oy :illo'wing the two rotfxtirg .Qleeve nora; to register sinniltoneonsly with the two eX- hmist norts :ind siihsoquentlv with the two induction ports of the fixed cvlinders.

it :nur he desirable to provide a third or fnrtl'ier nortor porte in the sleeve cylinder to regidor with the *first pair oi' ports and A ccrrespomling second or further 'pairs of porte` in the fired r-,Iviinder to register therewith simultaneously the rotational speed oi the sleeve being reduced in the equivalent ratio but as far :is my present experience goes two ports Suice in ordinary circumstances regrietering vwith two noirs of ports in the iixeil cylinder or cylinders.

BV menne, of the reduced reto of rotation of the sleeve vulve cylinder friction is minimirefl and by means of the duplication or multiplir-.fltion of ports theaction of Said valve cylinder is facilitated owing to the provision of increased port aren nermitting more perfect eceventfinsz sind alimentation especially nt high speeds.

The wells of thil rotating vulve cylinder of mr nreeent invention :ire cnt to give elneticitv to the wolle :md thev are groove/ri to :insist lubrication. The seid cute in the wollev of said valve cvlinder are ore ferabl made to commence at the upper edge adje rent to the ports nml to extend downward through the porte terminating ft short dis-- tance below the port aren. By this arrangement n force internally applied to the ont cylinder walls will exp-:ind their), thun 'when the force or eivploeion so applied the smid force will impinge upon the urea of the rotating alle exposed hy the ports of the .fixed interior or piston cylinder and will thus cause the vulve cylinder walls to bear more closely against the ports of the external cylinder thus effectively sealing the said ports :it the desired moment. Further provision is made to maintain eoinpression hy the use of expunsihle rings which may he placed between the rotafng vulve cylin der undone or both of the iiird cylinders at :inv convenient point or points hot-h :ihove und Delon the port oren and these ringe may i=' of :my convenient forni or pattern.

'the provision of 'imm-ered lubrication iS attained first hy thc construction of groores preferably spiral on either or both eide@ of the sleeve faire cylinder and it desired alternnthrol/ or additionally on the Sides oi' the ,fixed ovm "meent to nella of the rotating# rfvinler in manner tint 'the lf i nil moon one of Y' mi fri il intimi l'iictiouzii ci ln .widmen lY met, pierce or pe tornio onf," oi mille, miurenientl'v to ellen" the lnhrn ting oil to gift-s through the openings hns frowned from one sido 'if the cylinder wall to the other side.

My invention is illustrated by way oi example in the accompanying drawings in which-- Figure l Shows a vertical sectioii of fm engine liming :an internal fixed cylinder. Fi i' :shone :i` ide elevation of i four cja'lin flor engine partly in sentirmi Fig. 3 ,allows :i liogrmmrmtie Sectional plein View on a line Mii? oi? Fig l. l-` i eiiows e verticel eration through the ports on the line C--I-D Fig. 5 shows Sectional pien View exposing the im' shaft on the line 'ENF of Wg. L and Fig ti :i sectional view illustrating n modification of the valve Structure.

Referring non' to the drawings 1 indicates the fixed interior or piston cylinder, 2 infliontesfthe rotating Sleeve 'valve cylinder; 3 indicates the outer fixed cylinder incased the in a Water jacket; 4 indicates the passage leading to the duplicate exhaust ports;

-cylinders; 9 indicates the toothed flange of the valve cylinders; l0 indicates the tooth members of a lay shaft 11 adapted to engage with the langes 9; 12 indicates the trans verse shaft used to operate the magneto; 13 indicates the piston.

Fig. i5 illustrates a chain drive l5 for operatine; the lay shaft 1l from the main shaft.

In Fig. il the relative positions of the ports of the rotating' rame c' liuders of a multi cylinder engine are illi 1ated, the rearmost cylinder (having both ports at right angles to the central line) being disposed at the moment of ignition and showing the amalgamation oil ports in adjacent pairs in cyl inders having contra rotation.

In Fig. 2 I illustrate the valve cylinder wherein 16 indicates a saw cut through the Walls of the port area; 17 indicates the spiral oil grooves 18 indicates a perforation and 19 indicates a flange to receive the ball bea'ri In Pig il I have illustrated a modified form of my invention, in which instead of a single rotating valve either disposed internally or externally with respect to a fixed vpiston cylinder`r I may arrange a valve in the forni a pair of concentric cylindrical valve members 92 and 23, of contra rotation. as shown bv the arrows., the Walls of one valve member being in contact with the Walls of the other. By this arrangement, I obtain a more rapid opening and closing of the ports of the engine. I provide in the outer cylindrical valve ineml'ver E32 four ports 24, while in the inner cylindrical valve mem ber 23 I provide two ports 25, of approximately twice the width of the said ports 2l. Duringr the contra rotation of said valve members. said ports are adapted to register with and open and close the corresponding' pairs of ports 26 in the fixa; evlin rs '27 and 28. In Fitz. 6 the valve is shown in the position of mid-exhaust.

It will be seen that by inv construction and arrangement of parts (l) the Working friction of the rotating: cvlindrical valve is reduced' (2l the action of said valve is cilitiited by increased port area and by improved port action (3) an improved system of lubrication for the said cylinder provided. Y

What I claim is- 1- In an enginetbcconibination of a fixed interior cylinder having a plurality of pairs of ports, one port of each pair being an adiig-@4,027

f mission port and the other an exhaust port; a piston workingr in said cylinder: a main shaft; crank connections between said piston and main shalt: an annular cylindrical valve sleeve mounted to rotate about said cylinder and having ports iii-ual in number with the pairs of ports in said cylinder, adapted when (he valve is rotated to register alter-f natcly simultaneously with all the admission ports and then simultaneously with all the exhaust ports; and driving connections between said main shaft and valve sleeve for driving` the latter from the former at suitable relative speed.

ln an engine the combination of a fixed cylinder structure comprising a pair of coaxial cylinflri al shellsspaced apart and inning a plurality of pairs of through ports leadingthrough Said shells one port of each pair being an admission port and the other an exhaust port; a piston mounted to recip roca-te Within the inner shell; a main shaft; crank connections between said piston and main shaft; an annular cylindrical valve sleeve fitted to rotate in the space between the fixed cylindrical shells and having through ports equal in number with lthe pairs of ports in said cylinder structure and adapted when thc sleeve is rotated to regisK tor alternately simultaneously with all the admission ports and then simultaneously with all the exhaust ports; and driving connections between said main shaft and valve sleeve for driving the latter from the former at suitable relative speed.

3. In an engin-o the combination of a fixed cylinder structure comprising a pair of eo axial cylindrical shells spaced apart and having a plurality of pairs of through ports leading" through said shells, one port of each pair being an admission port and the, other an exhaust port; :1 piston mounted to reciprocate within the inner shell; a main shaft; crank connections between said piston and main shaft: a pair of annular cylindrical vvalve slcevi r mounted to rotate coaxially and in opposite directions in the space bc- 'wvctn said focal sleeyes. each sleeve having a. plural of ports adapted upon the rotation of said slet-fos to register alternately simultaneously with all the adm sion ports and then simultaneously with all the exhaust ports; and dsrii'ir..f ann ions between said main shalt and s id sleeves for rotatii'ig the latter in opposite directions tit suitable relative rates,

In testimony whereof l have signed my name to the specification in the presence of tivo subscribed Witnesses.

HOWARD CRUNDEN CLEAVER.

Witnesses:

GEORGE Henna, LnoNARn E. HAYNEs. 

